Results 21 to 30 of about 3,275 (306)
Study on damping characteristics of steam turbine hollow vane with damper
Nihon Kikai Gakkai ronbunshu, 2014 A vane used in a low pressure end of steam turbine is usually fixed to a shroud and a casing by welding both ends. In such a vane structure, the damping in loading operation is comprised of the material damping and the aerodynamic damping, because the ...
Yasutomo KANEKO +3 more
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Nihon Kikai Gakkai ronbunshu, 2014 For the passive vibration isolation system, a friction damper is advantageous at cost, a maintenance, etc. However, the conventional damper of constant friction force has performance limitations; the isolation characteristic declines when the friction ...
Hideya YAMAGUCHI +2 more
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An equivalent approach for modelling butterfly-hysteresis passive variable friction damper
SN Applied Sciences, 2022 This research work proposes an equivalent approach modelling the peculiar hysteretic behavior of passive variable friction damper, for engineers who call for a simplified way to simulate such damper in anti-earthquake engineering practice with acceptable
Wenlu Wen +4 more
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Prototype Test of Resilient Friction Materials for Seismic Dampers
Materials, 2023 In recent decades, low-yielding seismic devices based on the use of friction dampers have emerged as an excellent solution for the development of building structures with improved reparability and resilience. Achieving an optimal design for such low-yielding seismic devices requires precise control of bolt preloading levels and predictability of the ...
Francavilla A. B., Latour M., Rizzano G.
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Friction Damper Optimization: Simulation of Rainbow Tests [PDF]
Journal of Engineering for Gas Turbines and Power, 1999 Friction dampers have been used to reduce turbine blade vibration levels for a considerable period of time. However, optimal design of these dampers has been quite difficult due both to a lack of adequate theoretical predictions and to difficulties in conducting reliable experiments.
Kenan Y. Sanliturk +3 more
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Stick/slip phenomena in dynamics: choice of contact model. Numerical predictions & experiments [PDF]
, 2007 This paper presents a method for choosing the most appropriate contact model from several models, by comparing their efficiency for predicting hysteretic behaviour in different applications.
Michon, Guilhem +4 more
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Hangkong gongcheng jinzhan, 2018 It is of important significance to study the vibration characteristics and vibration suppression technology of aero-engine rotating blades to improve the engine performance, structural integrity and working reliability.
Qin Jie, Yan Qun, Huang Wenchao
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Vehicles, 2021 The most important change in the transition from partial to high automation is that the vehicle can drive autonomously, without active human involvement.
Ludwig Herzog, Klaus Augsburg
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Experimental Study on a Hybrid Coupling Beam With a Friction Damper Using Semi-steel Material
Frontiers in Materials, 2019 RC coupling beams have been reported to have had serious damages during the 2008 Wenchuan earthquake. Beams are very difficult to repair once cracks occur.
Tao Wang, Fengli Yang, Xin Wang, Yao Cui
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Enhancing Friction Pendulum Isolation Systems Using Passive and Semi-Active Dampers
Applied Sciences, 2020 Friction pendulum systems (FPSs) are a common solution for isolating civil engineering structures under ground movements. The result is a base-isolated structure in which the base exhibits low shear stiffness in such a way that the input energy of the ...
Christian A. Barrera-Vargas +3 more
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